Valve superstructure



Jan. 6, 1931. s. w. SPARKS VALVE SUPERSTRUCTURE Filed Nov. 20; 1925 5Sheets-Sheet 1 nvvswron M 1/ I #JATrom Ex lll l l.-

Jan. 6, 1931.

s. w. sPARks VALVE SUPERS'I'RUCTURE Filed Nov. 20, 1925 3 Sheets-Sheet 2m VENTOR s fluurokus Jan. 6,1931. 5, w, SPARKS 1,788,000

VALVE SUPEKS TRUC TURE Filed Nov. 20, 1925 s Sheets-Sheet s Q PatentedJan. 6, 4 1931 UNITED STATES. PATENT OFFICE STANLEY W. SPARKS,OF'BUHMIT, JERSEY, ASSIGNOB TO THE COLUMBUS MA- CHINE COMPANY, OFCOLUMBUS, OHIO, A. CORPORATION OF OHIO vanvn surnnsraucrvnn Applicationfiled November 20, 1925. Serial No. 70,209.

This invention relates to improvements in high-pressure and hightemperature valves and has particular reference to superstructurestherefor.

The principal objects of the invention are the provision of ahighlydurable valve super-structure which has little tendency to warp orbecome distorted by heat or high pressures and which does not requirefrequent repacking of the valve, thus avoiding the necessity forshutting down ap aratus on Y which the same is employed in or ertopermit of such repacking.

My invention is fully set forth in the following detail description anddrawings forming a partthereof in which Figure 1 is a vertical section,partially in elevation showing my improved super-structure applied to agate valve;

Fig. 2 is an end elevation tion of such valve; 1

Fig. 3 is a front elevation of a similar valve, but provided with amodified form of super-structure Fig. 4 is a fragmentary elevation of astill further modification; and

Fig. 5 is a transverse section on the line 5-5 of Fig. 4.

partially in sec- Referring tothe drawings and, the con- 3 structionshown therein, the reference numeral 1 desi nates the casing of thevalve body proper, the same being of the eneral external configuration'of-a cylinder aving having anoblong valve- .35 chamber ain the bottomportion thereof flattened sides and which is of considerably reducedcross-sectional area as compared with an upper heat radiating chamber bthat is of an upwardly flaring configuration and generally circular incross-section. A' peripheral flange 2 havingi a-groove 3 serves toconnect the valve bo ..y to the super-structure described. p

The flattened side walls of said casing 1 are provided with opposinapertures adapted to receiveinternal bushmg members 4 which carry valveseats 5 on their respective inner ends and are secured at their outerends to hollow hub members 6.

A tapered gate member 7 which is operatively secured to a valve-stem 8that is operable by a hand wheel 9 is adapted to co-operate with thevalve-seats 5 and seal communication through the respective hollow hubmembers 6.

A super-structure comprising a tapering bonnet member 10 to which issecured the yoke 11, is bolted by means of a peripheral flange 12 andbolts 13 to the corresponding flange 2 on the valve body, said flange 12being provided with an annular rib or tongue member 14 which registerswith and snugly fits in the groove 3 so as to more effectively I sealthe joint between said flanges.

The said bonnet is provided with a bevelled ground recess 15 whichserves as a seat for the bevelled collar 16 carried by said valve stemand admits of replacing the packing 17 in a stufiin without shutting ownthe portion of the line controlled by the gate.

The said bonnet is provided with an elongated cylindrical chamber awhich has an aperture 19 at the bottom and is adapted to snugly engagethe valve-stem 8 and is closed at its upper end by an'a ertured plug orpartition 20 that forms the l wer end of the stuffing box 18.

bonnet substantially conforms to a truncated cone and the same mayeither have a smooth or plain exterior surface, as shown in,F1g. 1, oras I much prefer, the same may be of fluted configuration having aseries of horizontally disposed fins or ribs .21, as shown in F ig: 3 oragainsuch fins 21 or ribs may be long1- tudinally dis osed, as shown inFigs. ,4 and 5. Whichever fbrm of bonnet is employed,

whether. of plain or fluted external shape, the overall dimensions 6fthe same should be such thatthe vertical distance from the top of the. p

box 18 when necessary As shown, the external configuration of the vflange 12 to the bottom of the plug or partition 20 should be not lessthan the maximum v diameter of the bonnet, exclusive of 7 its flangeportion 12, and, in the case of a bonnet of tapered shape, at least 1the minimum herein described not only prolongs the life of the packingof the stufling box, but serves as an eflective continuation of theradiating I chamber and thereby more efiectivel radiates or dissipatesinto the atmosphere t e heat from the valve body proper, thus coolingthe latter very materially andthus preventing continuous deteriorationof the metal in the bod with the consequent substantial increase of t elife of the valve.

B thus radiating the heat from the body of t e valve the fatigue of themetal ofthe body and tendency of same to crystallize. is materiallylessened thereby prolonging the life of the body. This is consideredimportant also, as obviously ifthe crystallization or fatigue islessened, the metal of the body is capable of withstanding greaterinternal pressures and consequently the tendency to distort is alsolessened.

' This is a continuation in part of ap licants co-opending applicationNo. 729, 52 for valves filed August 2nd, 1924.

member having externally projecting cooling fins arranged in asuperimposed longitudinal.

series and said bonnet member belng provided. with a stufiing box theheight of the stufling box above the body member belng greater than themaximum external diameter of said bonnet member at a point immediatelyabove the flange thereof.

Signed at New York, in the county and State of New York, this 6th day ofNov.,

' STANLEY SPARKS.

Having thus described my invention what i I desire and claim'to obtainby Letters Patent of the United States is:

- 1. In a valve, the combination comprising a valve body member rovidedwith opposing lateral apertures and having alower valve chamber andanupwardly flaring radiation chamber above and in communication withthe, valve chamber, a flan ed superstructure securedto said bodiy mem erand serving to seal the top of sai radiation chamber, saidsuperstructure includin an elongated bonnet member having externa 1yprojecting coolin fins and said bonnet member being provide with astufiing box the height of the stu'fling box above the body member beinggreater than the maximum external diameter of said bonnet member at apoint immediately above the flange thereof.

- 2. In a valve, the combination comprising a valve body member providedwith opposing lateral apertures and having a lower valve chamber and anupwardly flaring radiation chamber above and in communication with thevalve chamber, a flanged superstructure secured to said body member andserving to seal the top of said radiation chamber, said superstructureincluding an elongated bonnet

